Try using hugo-embed-pdf-shortcode

Link: https://github.com/anvithks/hugo-embed-pdf-shortcode

content/now.md

@@ -14,9 +14,7 @@ I'm in the last month of my second semester at Rutgers University School of Comm
 
 I started working as a Data Science Graduate Specialist for Rutgers University Libraries this semester, a role in which I am developing and teaching weekly, open workshops in "Data Science Basics" for individuals who want to improve their data management and visualization skills. In March, I also started working on a pilot study with a professor from the Department of Library and Information Science.
 
-<object data="/NJLEND project poster (Yoo, 2023).pdf" type="application/pdf" width="750" height="500">
+{{< embed-pdf url="/NJLEND project poster (Yoo, 2023).pdf" hidePaginator="true" >}}
-  <p>The PDF file could not be displayed, but you can still <a href="NJLEND project poster (Yoo, 2023).pdf">download it</a>.</p>
-</object>
 
 ## In my free time
 My summer plans are nearly finalized.

layouts/shortcodes/embed-pdf.html

@@ -0,0 +1,263 @@
+{{- if not ($.Page.Scratch.Get "embed-pdf-count") -}}
+
+<script type="text/javascript" src= '/js/pdf-js/build/pdf.js'></script>
+
+<style>
+  #embed-pdf-container {
+    position: relative;
+    width: 100%;
+    height: auto;
+    min-height: 20vh;
+    /* overflow-y:scroll; */
+  }
+  
+  .pdf-canvas {
+    border: 1px solid black;
+    direction: ltr;
+    width: 100%;
+    height: auto;
+    display: none;
+  }
+  
+  #the-canvas {
+    border: 1px solid black;
+    direction: ltr;
+    width: 100%;
+    height: auto;
+    display: none;
+  }
+  
+  
+  .pdf-loadingWrapper {
+    display: none;
+    justify-content: center;
+    align-items: center;
+    width: 100%;
+    height: 350px;
+  }
+  
+  .pdf-loading {
+    display: inline-block;
+    width: 50px;
+    height: 50px;
+    border: 3px solid #d2d0d0;;
+    border-radius: 50%;
+    border-top-color: #383838;
+    animation: spin 1s ease-in-out infinite;
+    -webkit-animation: spin 1s ease-in-out infinite;
+  }
+  
+  {{/*  Download link  */}}
+  
+  
+  
+  #overlayText {
+    word-wrap: break-word;
+    display: grid;
+    justify-content: end;
+  }
+  
+  #overlayText a {
+    position: relative;
+    top: 10px;
+    right: 4px;
+    color: #000;
+    margin: auto;
+    background-color: #eeeeee;
+    padding: 0.3em 1em;
+    border: solid 2px;
+    border-radius: 12px;
+    border-color: #00000030;
+    text-decoration: none;
+  }
+  
+  #overlayText svg {
+    height: clamp(1em, 2vw, 1.4em);
+    width:  clamp(1em, 2vw, 1.4em);
+  }
+  
+  
+  
+  @keyframes spin {
+    to { -webkit-transform: rotate(360deg); }
+  }
+  @-webkit-keyframes spin {
+    to { -webkit-transform: rotate(360deg); }
+  }
+  </style>
+{{- end -}}
+
+{{- $.Page.Scratch.Add "embed-pdf-count" 1 -}}
+<div class="embed-pdf-container" id="embed-pdf-container-{{ substr (.Get "url" | md5) 0 8 }}">
+    <div class="pdf-loadingWrapper" id="pdf-loadingWrapper-{{ substr (.Get "url" | md5) 0 8 }}">
+        <div class="pdf-loading" id="pdf-loading-{{ substr (.Get "url" | md5) 0 8 }}"></div>
+    </div>
+    <div id="overlayText">
+      <a href="{{ .Get "url" }}" aria-label="Download" download>
+        <svg aria-hidden="true" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18">
+            <path d="M9 13c.3 0 .5-.1.7-.3L15.4 7 14 5.6l-4 4V1H8v8.6l-4-4L2.6 7l5.7 5.7c.2.2.4.3.7.3zm-7 2h14v2H2z" />
+        </svg>
+      </a>
+    </div>
+    <canvas class="pdf-canvas" id="pdf-canvas-{{ substr (.Get "url" | md5) 0 8 }}"></canvas>
+</div>
+
+<div class="pdf-paginator" id="pdf-paginator-{{ substr (.Get "url" | md5) 0 8 }}">
+    <button id="pdf-prev-{{ substr (.Get "url" | md5) 0 8 }}">Previous</button>
+    <button id="pdf-next-{{ substr (.Get "url" | md5) 0 8 }}">Next</button> &nbsp; &nbsp;
+    <span>
+      <span class="pdf-pagenum" id="pdf-pagenum-{{ substr (.Get "url" | md5) 0 8 }}"></span> / <span class="pdf-pagecount" id="pdf-pagecount-{{ substr (.Get "url" | md5) 0 8 }}"></span>
+    </span>
+    <a class="pdf-source" id="pdf-source-{{ substr (.Get "url" | md5) 0 8 }}" href="{{ .Get "url" }}">[pdf]</a>
+</div>
+
+<noscript>
+View the PDF file <a class="pdf-source" id="pdf-source-noscript-{{ substr (.Get "url" | md5) 0 8 }}" href="{{ .Get "url" }}">here</a>.
+</noscript>
+
+<script type="text/javascript">
+    (function(){
+    var url = '{{ .Get "url" }}';
+
+    var hidePaginator = "{{ .Get "hidePaginator" }}" === "true";
+    var hideLoader = "{{ .Get "hideLoader" }}" === "true";
+    var selectedPageNum = parseInt("{{ .Get "renderPageNum" }}") || 1;
+
+    // Loaded via <script> tag, create shortcut to access PDF.js exports.
+    var pdfjsLib = window['pdfjs-dist/build/pdf'];
+
+    // The workerSrc property shall be specified.
+    if (pdfjsLib.GlobalWorkerOptions.workerSrc == '')
+      pdfjsLib.GlobalWorkerOptions.workerSrc = "{{.Site.BaseURL}}" + 'js/pdf-js/build/pdf.worker.js';
+
+    // Change the Scale value for lower or higher resolution.
+    var pdfDoc = null,
+        pageNum = selectedPageNum,
+        pageRendering = false,
+        pageNumPending = null,
+        scale = 3,
+        canvas = document.getElementById('pdf-canvas-{{ substr (.Get "url" | md5) 0 8 }}'),
+        ctx = canvas.getContext('2d'),
+        paginator = document.getElementById("pdf-paginator-{{ substr (.Get "url" | md5) 0 8 }}"),
+        loadingWrapper = document.getElementById('pdf-loadingWrapper-{{ substr (.Get "url" | md5) 0 8 }}');
+
+
+    // Attempt to show paginator and loader if enabled
+    showPaginator();
+    showLoader();
+
+    /**
+     * Get page info from document, resize canvas accordingly, and render page.
+     * @param num Page number.
+     */
+    function renderPage(num) {
+      pageRendering = true;
+      // Using promise to fetch the page
+      pdfDoc.getPage(num).then(function(page) {
+        var viewport = page.getViewport({scale: scale});
+        canvas.height = viewport.height;
+        canvas.width = viewport.width;
+
+        // Render PDF page into canvas context
+        var renderContext = {
+          canvasContext: ctx,
+          viewport: viewport
+        };
+        var renderTask = page.render(renderContext);
+
+        // Wait for rendering to finish
+        renderTask.promise.then(function() {
+          pageRendering = false;
+          showContent();
+
+          if (pageNumPending !== null) {
+            // New page rendering is pending
+            renderPage(pageNumPending);
+            pageNumPending = null;
+          }
+        });
+      });
+
+      // Update page counters
+      document.getElementById('pdf-pagenum-{{ substr (.Get "url" | md5) 0 8 }}').textContent = num;
+    }
+
+    /**
+     * Hides loader and shows canvas
+     */
+    function showContent() {
+      loadingWrapper.style.display = 'none';
+      canvas.style.display = 'block';
+    }
+
+    /**
+     * If we haven't disabled the loader, show loader and hide canvas
+     */
+    function showLoader() {
+      if(hideLoader) return
+      loadingWrapper.style.display = 'flex';
+      canvas.style.display = 'none';
+    }
+
+    /**
+     * If we haven't disabled the paginator, show paginator
+     */
+    function showPaginator() {
+      if(hidePaginator) return
+      paginator.style.display = 'block';
+    }
+
+    /**
+     * If another page rendering in progress, waits until the rendering is
+     * finished. Otherwise, executes rendering immediately.
+     */
+    function queueRenderPage(num) {
+      if (pageRendering) {
+        pageNumPending = num;
+      } else {
+        renderPage(num);
+      }
+    }
+
+    /**
+     * Displays previous page.
+     */
+    function onPrevPage() {
+      if (pageNum <= 1) {
+        return;
+      }
+      pageNum--;
+      queueRenderPage(pageNum);
+    }
+    document.getElementById('pdf-prev-{{ substr (.Get "url" | md5) 0 8 }}').addEventListener('click', onPrevPage);
+
+    /**
+     * Displays next page.
+     */
+    function onNextPage() {
+      if (pageNum >= pdfDoc.numPages) {
+        return;
+      }
+      pageNum++;
+      queueRenderPage(pageNum);
+    }
+    document.getElementById('pdf-next-{{ substr (.Get "url" | md5) 0 8 }}').addEventListener('click', onNextPage);
+
+    /**
+     * Asynchronously downloads PDF.
+     */
+    pdfjsLib.getDocument(url).promise.then(function(pdfDoc_) {
+      pdfDoc = pdfDoc_;
+      var numPages = pdfDoc.numPages;
+      document.getElementById('pdf-pagecount-{{ substr (.Get "url" | md5) 0 8 }}').textContent = numPages;
+
+      // If the user passed in a number that is out of range, render the last page.
+      if(pageNum > numPages) {
+        pageNum = numPages
+      }
+
+      // Initial/first page rendering
+      renderPage(pageNum);
+    });
+    })();
+</script>

static/.htaccess

@@ -7,7 +7,7 @@ Header always set X-Content-Type-Options "nosniff"
 Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" "expr=%{req_novary:X-Forwarded-Proto}=='https'"
 Header always set Referrer-Policy "no-referrer"
 Header always set Permissions-Policy "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), cross-origin-isolated=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), navigation-override=(), payment=(), picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=()"
-Header always set Content-Security-Policy "default-src 'none'; frame-ancestors 'self'; frame-src 'self'; img-src 'self'; style-src 'self' 'sha256-hgWmJ4N/XjVDdpPaJ9SyNBobcUm30V1q+z6yvJzFRlk='; base-uri 'self'; connect-src 'self'; form-action https://duckduckgo.com; frame-ancestors 'none'; object-src 'self'; script-src-elem 'self'; upgrade-insecure-requests;"
+Header always set Content-Security-Policy "default-src 'none'; img-src 'self'; style-src 'self' 'sha256-hgWmJ4N/XjVDdpPaJ9SyNBobcUm30V1q+z6yvJzFRlk='; base-uri 'self'; connect-src 'self'; form-action https://duckduckgo.com; frame-ancestors 'none'; script-src-elem 'self'; upgrade-insecure-requests;"
 
 # Set custom error page: https://faq.nearlyfreespeech.net/full/error
 ErrorDocument 404 /404.html

static/js/pdf-js/LICENSE

@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS

static/js/pdf-js/web/cmaps/CNS2-V.bcmap

@@ -0,0 +1,3 @@
+àRCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSEáCNS2-H

static/js/pdf-js/web/cmaps/ETenms-B5-H.bcmap

@@ -0,0 +1,3 @@
+àRCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSEá	ETen-B5-H`
 ^

static/js/pdf-js/web/cmaps/GB-H.bcmap

@@ -0,0 +1,4 @@
+àRCopyright 1990-2009 Adobe Systems Incorporated.
+All rights reserved.
+See ./LICENSE

!!<21>º]aX!!]`<60>21<32>>	<09>p<0B>z<EFBFBD>$]‚<06>"R‚d<E2809A>-Uƒ7<C692>*„
4„%<25>+ „Z „{<7B>/…%…<<3C>9K…b<E280A6>1]†.<2E>"‡‰`]‡,<2C>"]ˆ
+<EFBFBD>"]ˆh<CB86>"]‰F<E280B0>"]Š$<24>"]‹<02>"]‹`<60>"]Œ><3E>"]<5D><1C>"]<5D>z<EFBFBD>"]ŽX<C5BD>"]<5D>6<EFBFBD>"]<5D><14>"]<5D>r<EFBFBD>"]‘P<E28098>"]’.<2E>"]“<0C>"]“j<E2809C>"]”H<E2809D>"]•&<26>"]–<04>"]–b<E28093>"]—@<40>"]˜<1E>"]˜|<7C>"]™Z<E284A2>"]š8<C5A1>"]›<16>"]›t<E280BA>"]œR<C593>"]<5D>0<EFBFBD>"]ž<0E>"]žl<C5BE>"]ŸJ<C5B8>"] (<28>"]¡<06>"]¡d<C2A1>"]¢B<C2A2>"]£ <20>"X£~<7E>']¤W<C2A4>"]¥5<C2A5>"]¦<13>"]¦q<C2A6>"]§O<C2A7>"]¨-<2D>"]©<0B>"]©i<C2A9>"]ªG<C2AA>"]«%<25>"]¬<03>"]¬a<C2AC>"]­?<3F>"]®<1D>"]®{<7B>"]¯Y<C2AF>"]°7<C2B0>"]±<15>"]±s<C2B1>"]²Q<C2B2>"]³/<2F>"]´
<0A>"]´k<C2B4>"]µI<C2B5>"]¶'<27>"]·<05>"]·c<C2B7>"]¸A<C2B8>"]¹<1F>"]¹}<7D>"]º[<5B>"]»9